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66 Mustang - High Pitch Noise / Feedback

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  • 66 Mustang - High Pitch Noise / Feedback

    Alright Here I go:

    1st, I'm new to car systems, but not to computers. so not to sure about this.

    2nd, heres my specs:
    ~Intel D510MO
    ~2gb DDR2
    ~250gb 2.5" Sata
    ~USB Touch Screen 7"
    ~USA 66 Radio with std aux in MP3 Jack
    ~Windows 7

    3rd, When Im accelerating, I get this horrid wine from my speakers that seams to change with my transmission, I shift, it shifts. I'm Using line out (standard jack) through a 20' Extension cable and into my radio. Any Ideas as what I can do to stop it. (Like I said I'm new to sound).

    Please dont tell me to search, I had a hard time finding anything.

    Thanks!

  • #2
    You didn't find this: http://www.mp3car.com/vbulletin/car-...ing-guide.html

    You have a ground loop.
    Have you looked in the FAQ yet?
    How about the Wiki?



    Under normal circumstances, a signature would go here.

    Comment


    • #3
      Originally posted by DarquePervert View Post
      You didn't find this: http://www.mp3car.com/vbulletin/car-...ing-guide.html

      You have a ground loop.
      This is what I searched:
      http://www.mp3car.com/vbulletin/sear...archid=7179032

      and to be honest, never saw the faq under the car audio topic, i skipped right over it I'm used to setups where Its

      Main page
      -Topic
      -- Sub Topic
      --- Posts

      Not
      Main Page
      - Topic
      --Posts
      -Sub topic
      -- Posts

      example: http://www.allfordmustangs.com/forums/classic-mustang/

      And now that ive probably ****ed you off about the layout of the site,

      Thank you for pointing me in the correct direction, it is greatly appreciated.

      Comment


      • #4
        Originally posted by raggedrebel92 View Post
        And now that ive probably ****ed you off about the layout of the site,

        Thank you for pointing me in the correct direction, it is greatly appreciated.
        Doesn't bother me at all.
        It's something I've been harping on the management about for some time.


        And you're quite welcome. I hope you get your situation resolved.
        Have you looked in the FAQ yet?
        How about the Wiki?



        Under normal circumstances, a signature would go here.

        Comment


        • #5
          well, Ive narrowed it down to 2 parts,

          The Speakers or the Radio..... I put headphones in on going down the road, and no noise from the PC end. now i got to find someway to check the speakers... *goes digging for a speaker*

          OH and Glad im not the only one a little confused about the layout of the site.

          Comment


          • #6
            it could still be the carpc--check your grounds.
            My OLD 2001 Mitsubishi Eclipse GT:
            "The Project That Never Ended, until it did"


            next project? subaru brz
            carpc undecided

            Comment


            • #7
              Originally posted by soundman98 View Post
              it could still be the carpc--check your grounds.
              The system is grounded to the striker bar for the trunk, IDK if thats enough grounding or not... right now im in a kinda blank it mood. So im taking a break.

              Interesting discovery though, turning treble up turns the whine down,

              Comment


              • #8
                Do you have any pics of this sweet machine?

                (i have a 67 mustang convertible that im planning on putting a carputer in, stealthily)

                Comment


                • #9
                  Originally posted by FelonyJake View Post
                  Do you have any pics of this sweet machine?

                  (i have a 67 mustang convertible that im planning on putting a carputer in, stealthily)
                  I will post pics once I get her finished. Glad to hear im not the only crazy SOB to put one in the mustang. Im tying the ground into the trunk floor now, and trying the original speakers again. The test speaker still squeeled.

                  Comment


                  • #10
                    Just drove her... and still the same noise.... so to radioshack I go in the morning for a ground loop isolator

                    oh and also its usa 1 not usa 66.

                    If you want great sound at an affordable price then this is the radio for you! A quick review of the features and you’ll realize why it’s our best seller. Now with 200 watts this radio has outstanding features. These features include:
                    ● PLL electronic synthesized tuner
                    ● 4 way fader
                    ● 24 pre-sets (6AM/18FM)
                    ● Auto Reverse Cassette
                    ● Best station memory
                    ● Fast forward/rewind
                    ● Auxiliary Input for direct
                    connection to todays audio
                    ● Separate bass & treble control
                    ● Pre-set scan
                    ● 200 watts high power
                    ● Scan & Seek tuning
                    ● 4 Channel RCA pre-out
                    ● Digital clock
                    Available in black or chrome ‘face’

                    Comment


                    • #11
                      ground loop isolators will not always correct the noise, and when they do work, they only cover up the problem--meaning that the original issue is not resolved, and could come back later on-- possibly even worse then before...

                      most of the time, ground loops are caused by poor grounds-- usually by a poor equipment/chassis connection-- sometimes caused by loose connections, contamination between the metals-- like not removing the paint on the ground connection, or in newer cars, certain spot-welded panels can have a higher resistance than others that can also cause ground loops.

                      it could also be caused by equipment being grounded at multiple points..
                      My OLD 2001 Mitsubishi Eclipse GT:
                      "The Project That Never Ended, until it did"


                      next project? subaru brz
                      carpc undecided

                      Comment


                      • #12
                        Originally posted by soundman98 View Post
                        ground loop isolators will not always correct the noise, and when they do work, they only cover up the problem--meaning that the original issue is not resolved, and could come back later on-- possibly even worse then before...

                        most of the time, ground loops are caused by poor grounds-- usually by a poor equipment/chassis connection-- sometimes caused by loose connections, contamination between the metals-- like not removing the paint on the ground connection, or in newer cars, certain spot-welded panels can have a higher resistance than others that can also cause ground loops.

                        it could also be caused by equipment being grounded at multiple points..
                        This is the case I Am using, its currently sitting (not anchored) on the carpet.

                        http://s916.photobucket.com/albums/a...e-tray-dvd.jpg

                        This is the wiring:
                        http://s916.photobucket.com/albums/a...ar-conn.jpg%26

                        and it is grounded at a single point as far as I can tell, to the sheet metal in the trunk. I will upload pics of the exact set up shortly

                        Comment


                        • #13
                          See attachments

                          Yellow=12v pwr
                          Black = Ground
                          Red= switch / not connected
                          Attached Files

                          Comment


                          • #14
                            If that blue crimp is grounding a 20A amp (200W)....!

                            Comment


                            • #15
                              95w
                              And its the only one I had that would fit the wire I was provided with.

                              Comment

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